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From Wikipedia:
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A gun is any of several types of object that propels another object or projectile. The projectile is generally fired through a hollow tube known as the gun's barrel. The barrel's diameter, or caliber, determines the size of projectile used, which is usually designated in fractions of an inch or in millimeters. Differing from the musket, most modern guns are rifled, with a series of grooves spiraling along the barrel; exceptions include smoothbores on tanks, AFVs and some artillery. |
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A sword is a long-edged piece of metal, used as a cutting and/or thrusting weapon in many civilizations throughout the world. The word sword comes from the Old English sweord, which cognates to Old High German swert, Middle Dutch swaert, Old Norse sverð (cp. modern Scandinavian sværd/sverd/svärd: Danish sværd, Norwegian sverd, Swedish svärd) Old Frisian and Old Saxon swerd and Modern Dutch zwaard and German Schwert, from a Proto-Indo-European root *swer- "to wound, to hurt". A sword fundamentally consists of a blade, a hilt, and a pommel, typically with one or two edges for striking and cutting, and a point for thrusting. The basic intent and physics of swordsmanship has remained fairly constant down the centuries, but the actual techniques varied among cultures and periods as a result of the differences in blade design and purpose. The names given to many swords in mythology, literature, and history reflect the high prestige of the weapon (see list of swords).
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Gündüz vs Gün, 
